Vulnerability Details : CVE-2018-12886
stack_protect_prologue in cfgexpand.c and stack_protect_epilogue in function.c in GNU Compiler Collection (GCC) 4.1 through 8 (under certain circumstances) generate instruction sequences when targeting ARM targets that spill the address of the stack protector guard, which allows an attacker to bypass the protection of -fstack-protector, -fstack-protector-all, -fstack-protector-strong, and -fstack-protector-explicit against stack overflow by controlling what the stack canary is compared against.
Products affected by CVE-2018-12886
- cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-12886
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-12886
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.1
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2018-12886
-
The product generates an error message that includes sensitive information about its environment, users, or associated data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-12886
-
https://gcc.gnu.org/viewcvs/gcc/trunk/gcc/config/arm/arm-protos.h?revision=266379&view=markup
[gcc] Contents of /trunk/gcc/config/arm/arm-protos.hVendor Advisory
-
https://www.gnu.org/software/gcc/gcc-8/changes.html
GCC 8 Release Series — Changes, New Features, and Fixes - GNU Project - Free Software Foundation (FSF)Exploit;Vendor Advisory
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